if statement is equal to a value - php

Question

I have a result(string) of 1,1,0,0 - These come from $sub_array['state']
Currently all of my check boxes are checked. How can I code the code below so that if its 1 its checked else its not? as the current code gives them all 'checked'
<?php
foreach($assoc_categories as $sub_array)
{
if($sub_array['state'] == 1)
{
$checked_state = " checked='checked'";
}
?>
<div>
<input
class="checkbox"
type="checkbox"
name="product_category"
class="product_category_selector"
id="product_category_<?php echo $sub_array['cat_id']; ?>"
data-id="<?php echo $sub_array['cat_id']; ?>"
<?php echo $checked_state; ?>
/>
<?php echo $sub_array['name']; ?>
</div>
<input
class="order"
type="input"
value="<?php echo $sub_array['sorder']; ?>"
/>
<?php
}
?>

Answer 1

Change:
if($sub_array['state'] == 1)
{
$checked_state = " checked='checked'";
}
To:
if($sub_array['state'] == 1)
{
$checked_state = " checked='checked'";
} else
{
$checked_state = "";
}
Basically, you are not clearing the previous value as the loop continues.
Alternatively, you could use:
$checked_state = ($sub_array['state'] == 1) ? " checked='checked'" : "" ;

Answer 2

You forget to reset checked_state or reset it to '' if $sub_array['state'] is equal to 0.
<?php
$assoc_categories = array(
array('state'=>1, 'cat_id'=>1, 'name'=>'one', 'sorder'=>1),
array('state'=>1, 'cat_id'=>2, 'name'=>'three', 'sorder'=>2),
array('state'=>0, 'cat_id'=>3, 'name'=>'four', 'sorder'=>3),
array('state'=>0, 'cat_id'=>4, 'name'=>'five', 'sorder'=>4),
);
foreach($assoc_categories as $sub_array)
{
$checked_state = $sub_array['state'] == 1 ? " checked='checked'" : '';
?>
<div>
<input
class="checkbox"
type="checkbox"
name="product_category"
class="product_category_selector"
id="product_category_<?php echo $sub_array['cat_id']; ?>"
data-id="<?php echo $sub_array['cat_id']; ?>"
<?php echo $checked_state; ?>
/>
<?php echo $sub_array['name']; ?>
</div>
<input
class="order"
type="input"
value="<?php echo $sub_array['sorder']; ?>"
/>
<?php
}